The poor die sweatshops; the rich die in sweatboxes:

(CNN) — Two people died and another 19 were injured at a central Arizona resort after spending up to two hours in a "sweatbox," authorities said Friday.

About 50 people had spent up to two hours inside the "sweatbox," a dome-like structure covered with tarps and blankets, according to the Yavapai County Sheriff's Office.

CNN affiliate KPHO in Phoenix reported that the illnesses occurred during a ceremony led by James Arthur Ray, author of the best-selling book "Harmonic Wealth: The Secret of Attracting the Life You Want."

Ray, described on his Web site as a "personal success strategist," has appeared on CNN's "Larry King Live" and on the "Oprah Winfrey Show," and is featured in the self-empowerment film "The Secret."

Neither Ray nor his representatives could be reached Saturday to comment.

Angel Valley Resort advertises itself as "a place to relax and heal ... where powerful earth energies are present and active." It was founded in April 2002 by Michael and Amayra Hamilton, both of whom are teachers and counselors there.

The resort is on 70 secluded valley acres 20 minutes from Sedona, surrounded by thousands of acres of national forest, according to the Web site. It has Internal Revenue Service nonprofit status as a religious organization, its Web site says.

"There are twenty marked vortexes and angel sites to experience connection with Earth and spirit, deep relaxation, and balancing," an online brochure says. "Angel Valley offers two labyrinths and an Angel Wheel for going inward, finding answers and getting insights.